Convertible in-line roller skates

In a skate assembly comprising a shoe having a sole plate, toe and heel attachment means secured to said sole plate, and coupling means for securing a wearer's surface blade support subassembly to said toe and heel attachment means;

• said skate assembly being further characterized in that:
• (a) at least one of said toe and heel attachment means includes recessed blade receiving anchoring members with inwardly extending locking flanges defining a gap zone therebetween and adapted to receive a mating blade support rotatable anchoring cam therewithin;
• (b) said blade support subassembly including frame means having a surface contact member secured thereto along the base surface thereof and a said rotatable blade support anchoring cam in opposed relationship to said surface contact member;
• (c) said coupling means having attachment means receiving cavities formed therewithin and each cavity being arranged to firmly receive and retain one of said attachment means therewithin, said rotatable cam locking member being rotatable about a camming axis and with a radially extending web with laterally extending camming ramp flanges coupled to said web and being disposed radially outwardly of said camming axis;
• the arrangement being such that the outer surface of the camming ramp engages the inner surface of the ramp flanges, with said radially extending web passing between said inwardly extending locking flanges defining said cam ramp.